Six-time Olympic champion Bolt does not agree that the athletics world governing body, the IAAF, should have accepted Gay's reduced ban.

"I don't think that's the right way to go because you are pretty much telling people that this is a way out, it's a way of beating the system," he said.

The IAAF said in a statement: "After careful review of the full file provided by Usada, the IAAF has decided that the one-year sanction applied in the case of Tyson Gay was appropriate under the circumstances and in accordance with IAAF Rules."